Nothing Special   »   [go: up one dir, main page]

EP4292793A3 - Apparatus and method for processing a composite structure - Google Patents

Apparatus and method for processing a composite structure Download PDF

Info

Publication number
EP4292793A3
EP4292793A3 EP23205797.6A EP23205797A EP4292793A3 EP 4292793 A3 EP4292793 A3 EP 4292793A3 EP 23205797 A EP23205797 A EP 23205797A EP 4292793 A3 EP4292793 A3 EP 4292793A3
Authority
EP
European Patent Office
Prior art keywords
vacuum
mandrel
tooling surface
processing
composite structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23205797.6A
Other languages
German (de)
French (fr)
Other versions
EP4292793A2 (en
Inventor
James R. Kendall
Byron James Autry
Santiago M. Mejia
Brian T. Peters
Brian S. Carpenter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing Co
Original Assignee
Boeing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boeing Co filed Critical Boeing Co
Publication of EP4292793A2 publication Critical patent/EP4292793A2/en
Publication of EP4292793A3 publication Critical patent/EP4292793A3/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/544—Details of vacuum bags, e.g. materials or shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/56—Compression moulding under special conditions, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/549—Details of caul plates, e.g. materials or shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
    • B29C2043/3649—Inflatable bladders using gas or fluid and related details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/56—Compression moulding under special conditions, e.g. vacuum
    • B29C2043/561—Compression moulding under special conditions, e.g. vacuum under vacuum conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076—Aircrafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

A mandrel (104) for processing a composite structure (102), comprises a tooling surface (106) on which a composite layup (152) is configured to be supported; and a mandrel vacuum channel (108) formed in the tooling surface (106), wherein the tooling surface (106) is configured such that a vacuum seal (190) is formed between the tooling surface (106) and an edge portion (116) of a vacuum-bag assembly (202), if placed over the composite layup (152) and the mandrel (104), in response to a vacuum applied to the mandrel vacuum channel (108); and such that a sealed vacuum chamber (184) that encloses the composite layup (152) is formed by the mandrel (104), the vacuum-bag assembly (202), and the vacuum seal (190).
EP23205797.6A 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure Pending EP4292793A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163174631P 2021-04-14 2021-04-14
EP22165875.0A EP4074498B1 (en) 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP22165875.0A Division EP4074498B1 (en) 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure
EP22165875.0A Division-Into EP4074498B1 (en) 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure

Publications (2)

Publication Number Publication Date
EP4292793A2 EP4292793A2 (en) 2023-12-20
EP4292793A3 true EP4292793A3 (en) 2024-07-31

Family

ID=81074069

Family Applications (2)

Application Number Title Priority Date Filing Date
EP23205797.6A Pending EP4292793A3 (en) 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure
EP22165875.0A Active EP4074498B1 (en) 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22165875.0A Active EP4074498B1 (en) 2021-04-14 2022-03-31 Apparatus and method for processing a composite structure

Country Status (3)

Country Link
US (1) US11999115B2 (en)
EP (2) EP4292793A3 (en)
CN (1) CN115195152A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4446100A1 (en) * 2023-04-14 2024-10-16 Siemens Gamesa Renewable Energy A/S Moulding apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716488A (en) * 1996-08-26 1998-02-10 The Boeing Company Reusable vacuum bag for making laminated articles
GB2316036A (en) * 1996-08-05 1998-02-18 Short Brothers Plc Bagging blanket and method for forming a fibre reinforced resin composite component
US6458309B1 (en) * 1998-06-01 2002-10-01 Rohr, Inc. Method for fabricating an advanced composite aerostructure article having an integral co-cured fly away hollow mandrel
US20100291258A1 (en) * 2009-05-15 2010-11-18 The Boeing Company Cure tool with integrated edge breather and method of making the same
RU2658043C1 (en) * 2017-10-03 2018-06-19 Общество с ограниченной ответственностью "БМП Технолоджи" Device for forming details from composite material (variants) and locking element of vacuum bag
US20190039335A1 (en) * 2017-08-04 2019-02-07 Industrial Technologies Inc. Reusable vacuum bag process
US20200070436A1 (en) * 2018-08-29 2020-03-05 The Boeing Company Overlapping Caul Plates and Method for Composite Manufacturing
CN110920101A (en) * 2019-10-21 2020-03-27 成都鲁晨新材料科技有限公司 Composite material forming die

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354195A (en) 1992-12-23 1994-10-11 United Technologies Corporation Composite molding apparatus for high pressure co-cure molding of lightweight honeycomb core composite articles having ramped surfaces utilizing low density, stabilized ramped honeycomb cores
FR2846276B1 (en) 2002-10-24 2005-01-07 France Etat Armement DEVICE FOR PRODUCING STRUCTURES IN COMPOSITE MATERIALS
US8985174B2 (en) * 2011-08-26 2015-03-24 The Boeing Company Integrally stiffened, reusable vacuum bag and method of making the same
US8684343B2 (en) 2012-01-06 2014-04-01 Rubbercraft Corporation Of California Ltd Composite fabrication vent assembly and method
US9333713B2 (en) * 2012-10-04 2016-05-10 The Boeing Company Method for co-curing composite skins and stiffeners in an autoclave
US9446572B2 (en) 2012-10-31 2016-09-20 The Boeing Company Composite tool having vacuum integrity
US10293519B2 (en) 2015-10-30 2019-05-21 The Boeing Company Mandrel bladder end fitting
JP6788486B2 (en) * 2016-12-01 2020-11-25 川崎重工業株式会社 Mold for manufacturing composite structures

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316036A (en) * 1996-08-05 1998-02-18 Short Brothers Plc Bagging blanket and method for forming a fibre reinforced resin composite component
US5716488A (en) * 1996-08-26 1998-02-10 The Boeing Company Reusable vacuum bag for making laminated articles
US6458309B1 (en) * 1998-06-01 2002-10-01 Rohr, Inc. Method for fabricating an advanced composite aerostructure article having an integral co-cured fly away hollow mandrel
US20100291258A1 (en) * 2009-05-15 2010-11-18 The Boeing Company Cure tool with integrated edge breather and method of making the same
US20190039335A1 (en) * 2017-08-04 2019-02-07 Industrial Technologies Inc. Reusable vacuum bag process
RU2658043C1 (en) * 2017-10-03 2018-06-19 Общество с ограниченной ответственностью "БМП Технолоджи" Device for forming details from composite material (variants) and locking element of vacuum bag
US20200070436A1 (en) * 2018-08-29 2020-03-05 The Boeing Company Overlapping Caul Plates and Method for Composite Manufacturing
CN110920101A (en) * 2019-10-21 2020-03-27 成都鲁晨新材料科技有限公司 Composite material forming die

Also Published As

Publication number Publication date
EP4074498A1 (en) 2022-10-19
CN115195152A (en) 2022-10-18
EP4292793A2 (en) 2023-12-20
US20220332060A1 (en) 2022-10-20
EP4074498B1 (en) 2023-12-13
US11999115B2 (en) 2024-06-04

Similar Documents

Publication Publication Date Title
US6357759B1 (en) Jacket seal
EP4292793A3 (en) Apparatus and method for processing a composite structure
WO2007019188A3 (en) Manufacture of photovoltaic devices
TW200514866A (en) Processing apparatus and method
AU1532400A (en) Method of and apparatus for evacuating a glass chamber
GB2586367A (en) High performance fluoroelastomer bonded seal for downhole applications
TWI567832B (en) A pressure vessel and a method of forming an airtight pressure environment
TW200420847A (en) Improved sealing arrangement for use in evacuating a glass chamber
US20230271375A1 (en) Shaping device and shaping method
CN113115507A (en) Beam extraction window structure of electron curtain accelerator
SG11201909913TA (en) Pickup apparatus and pickup method
US20120060704A1 (en) Object forming assembly
GB2499594A (en) Laser Welding Method and Apparatus
WO2020123298A3 (en) Screen protector application system and method
GB2581614A (en) Fluoroelastomer covered elastomeric for composite manufacturing
JP4420054B2 (en) Manufacturing method of resin plate and manufacturing method of speaker diaphragm using the same
EP2942182A1 (en) Method and system for applying a film to a plastic work piece that is to be cured, and a method for producing a plastic work piece
WO2005091283A8 (en) Method and apparatus for separating disc-shaped substrates
JPH05280647A (en) Vacuum seal method
JP5451432B2 (en) Work bonding machine
US2649313A (en) Gasket seal for laterally adjustable joints
WO2023114911A3 (en) Fuel cell component including polytetrafluoroethylene film bonded to graphite
JPH0810968A (en) Local vacuum chamber forming method in electron beam welding and electron beam welding equipment for strip continuous treatment
WO2004026531A3 (en) Device and method for connecting objects
TW202445258A (en) Device and method for processing a substrate in an evacuated processing space

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AC Divisional application: reference to earlier application

Ref document number: 4074498

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: B29C0043560000

Ipc: B29C0070540000

RIC1 Information provided on ipc code assigned before grant

Ipc: B29C 43/56 20060101ALI20240214BHEP

Ipc: B29C 43/36 20060101ALI20240214BHEP

Ipc: B29C 70/44 20060101ALI20240214BHEP

Ipc: B29C 70/54 20060101AFI20240214BHEP

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RIC1 Information provided on ipc code assigned before grant

Ipc: B29C 43/56 20060101ALI20240620BHEP

Ipc: B29C 43/36 20060101ALI20240620BHEP

Ipc: B29C 70/44 20060101ALI20240620BHEP

Ipc: B29C 70/54 20060101AFI20240620BHEP

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR